Wind-motor.



Patented luly'l, I902. J. M. CUCHRAN.

WIN D M 0 TO B.

(Application filed Oct. 16, 1901.)

2 Sheets-Sheet I.

(No Model.)

m ETERS co FnoYoumu, WASHING! v Patented July I, I902. J. m. COCHRAN.

WIND MOTOR.

(Application filed Oct. 16, 1901.)

2 Sheets$heet 2.

(No Model.)

IN VE N 70H- .]1: 63071111 WI TN E SSE S A TTOHNE YS UNITED STATES PATENT Genres;

JAMES MADISON COOHRAN, OF GOBER, TEXAS.

WIND-MOTQR.

SPECIFICATION forming part of Letters Patent No. 703,766, dated July 1, 1902. Application filed October 16, 1901. Serial No, 78,816. (No model.)

T0 whom it may concern.-

Be it known that I, JAMES MADISON Coon- RAN, a citizen of the United States, and a resident of Gober, in the county of Fannin and State of Texas, have invented new and useful Improvements in Wind Motors, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved wind-motor which is simple and durable in construction, very effective in operation, and arranged to permit the use of large wind-wheels without danger of creating any undue torsional or other strains and allow the vane to freely hold the Wheel into the wind and to insure aproper transmission of the power developed.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claims.

Apractical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is aside elevation of the improvement. Fig. 2 is an enlarged sectional side elevation of the same and Fig. 3 is an enlarged side elevation-of the gearing.

In wind-motors as heretofore constructed it has been found impracticable to build windwheels of more thantw'elveor sixteen feet in diameter, as the tail or vane is only capable of successfully bracing a twelve-foot wheel. When large wheels are used and geared to heavy machinery, the load tends to twist the wind-wheel and tail or vane to an angular position relatively to the direction of the wind, so that the force of the wind is not utilized to the fullest advantage and the wheel finally comes to a stop, as it cannot carry the load.

With my improvement, presently to be described in detail, this difficulty is completely overcome, and Wind-wheels of any desired diameter can be built and the power developed be properly transmitted without any danger of undue strains or twist, as the vane has only its legitimate function to perform-'- that is, to hold the wheel to the wind.

On a suitably-constructed tower A are arranged the bearings A and A in which is mounted to rotate the vertically-disposed hollow'hub B of the vane B, having a horizontally-disposed strengthening-rib B? extending into the hub B and terminating in an extension B forming a'spindle for the hollow shaft 0, carrying the wind-wheel D, of any approved construction. The hollow windwheel shaft 0 has also a bearing B attached to the hub B, and on the end of the said shaft within the hubB is secured a bevel gearwheelE, in mesh at opposite sides with the bevel-pinions'F- and G, secured on the upper ends of the shafts'F and G, respectively, of which the shaft'F is hollow and the other shaft G extends concentrically through it.

The shaft F has its upper end journaled in a bearing H,'ca rried by the=hollow hub B, and the lower end of the said shaft F is journaled in a step 11, carried by the tower A. (See Fig. 1.) The shaft G has a number of bearings I in the hollow shaft F, and the lower end of the said shaft G is set in a step I, carried on the base of the tower A. The lower ends of the shafts F and G carry gear- Wheels F G in mesh with the opposite sides of the bevel-pinion J, secured on the trans mission-shaft J connected in the usual manner with the machinery to be driven.

Now it will be. seen by the arrangement described that the rotary motion of the windwheel D and its shaft 0 is transmitted by the bevel gear-wheel E to the two pinions F and G to rotate the latter in opposite directions. This motion of" the bevel gear-wheels F and Gis transmitted to their shafts F and G and tothe bevel gear-wheels F and G and as the latter are in mesh at opposite sides with the pinion J it is evident that this pinion J and the shaft J are rotated in one direction and with the approximately full power developed in the wheel D.

By having the gear-wheel Emeshing with the pinions F and Gin the manner described it is evident that all torsional strain of the shaft 0 is counterbalanced, and consequently the vane 13 is completely free of such'strain and can properly perform its legitimate function--that is, hold the wheel to the wind.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of avane provided with 3. A wind-Inotor having a vane provided with a vertical hub mounted to turn, a brace 15 for the vane-body, and an extension on the brace for forming a bearing for the windwheel shaft, as set forth.

In testimony whereof I have signed my name to this specification in the presence of 20 two subscribing witnesses.

JAMES MADISON COCHRAN.

Witnesses:

' A. W. WILLETTS, W. A. STAFFORD. 

